弹钢琴怎么说英语单词

To play the piano in English, you would say "play the piano." Here are some other phrases that might be helpful:
Practice the piano: To rehearse or improve your skills on the piano.
Perform on the piano: To play the piano in front of an audience.
Accompany on the piano: To play the piano as accompaniment to a singer or instrumentalist.
I hope this helps! Let me know if you have any other questions.